// Decompiled with JetBrains decompiler
// Type: Rei.Fs.Webdav.PassportAuthHelper
// Assembly: Rei.Fs.Webdav, Version=1.13.2.18288, Culture=neutral, PublicKeyToken=null
// MVID: D30DD1E3-8520-48B5-AAE5-C87970350A82
// Assembly location: F:\Eigene Dateien\Dropbox\portable Collection\Progs\CarotDAV\Rei.Fs.Webdav.dll

using Microsoft.VisualBasic.CompilerServices;
using System;
using System.IO;
using System.Net;

namespace Rei.Fs.Webdav
{
  public class PassportAuthHelper
  {
    private static Uri _InitialRedirectorUri = new Uri("https://nexus.passport.com/rdr/pprdr.asp");
    private static Uri _LoginUri;
    public string UserAgent;
    public int ReadWriteTimeout;
    public int ConnectTimeout;
    public CookieContainer CookieContainer;
    public IWebProxy Proxy;
    public string GroupName;

    public static Uri InitialRedirectorUri
    {
      get
      {
        return PassportAuthHelper._InitialRedirectorUri;
      }
    }

    public static bool CheckPassportAuth(HttpWebResponse res)
    {
      return res.StatusCode == HttpStatusCode.Found && res.Headers[HttpResponseHeader.WwwAuthenticate] != null && res.Headers[HttpResponseHeader.WwwAuthenticate].Trim().StartsWith("Passport1.4 ");
    }

    private HttpWebRequest CreateRequest(Uri uri)
    {
      HttpWebRequest httpWebRequest = (HttpWebRequest) WebRequest.Create(uri);
      httpWebRequest.UserAgent = this.UserAgent;
      httpWebRequest.Proxy = this.Proxy;
      httpWebRequest.ReadWriteTimeout = this.ReadWriteTimeout;
      httpWebRequest.Timeout = this.ConnectTimeout;
      httpWebRequest.CookieContainer = this.CookieContainer;
      httpWebRequest.ConnectionGroupName = this.GroupName;
      httpWebRequest.KeepAlive = false;
      httpWebRequest.PreAuthenticate = false;
      httpWebRequest.AllowAutoRedirect = false;
      return httpWebRequest;
    }

    public Uri GetPassportLoginUri()
    {
      if ((object) PassportAuthHelper._LoginUri != null)
        return PassportAuthHelper._LoginUri;
      try
      {
        HttpWebRequest request = this.CreateRequest(PassportAuthHelper._InitialRedirectorUri);
        request.Method = "GET";
        using (HttpWebResponse response = (HttpWebResponse) request.GetResponse())
        {
          string[] strArray = response.Headers["PassportURLs"].Split(',');
          int num1 = 0;
          int num2 = checked (strArray.Length - 1);
          int index = num1;
          while (index <= num2)
          {
            if (strArray[index].Contains("DALogin"))
            {
              PassportAuthHelper._LoginUri = new Uri("https://" + strArray[index].Substring(checked (strArray[index].IndexOf("=") + 1)));
              return PassportAuthHelper._LoginUri;
            }
            checked { ++index; }
          }
        }
        throw new UnauthorizedException("Cannot access Passport authentication system.", (Exception) null, false);
      }
      catch (Exception ex)
      {
        ProjectData.SetProjectError(ex);
        throw new UnauthorizedException("Cannot access Passport authentication system.", ex, false);
      }
    }

    public string GetPassportToken(HttpWebResponse orgres, string user, string pass)
    {
      string str1 = orgres.Headers[HttpResponseHeader.WwwAuthenticate].Trim();
      int startIndex = str1.IndexOf(" ");
      string str2 = str1.Substring(startIndex).Trim();
      string str3 = string.Format("Passport1.4 sign-in={0},pwd={1},OrgVerb={2},OrgUrl={3},{4}", (object) Uri.EscapeDataString(user), (object) Uri.EscapeDataString(pass), (object) orgres.Method, (object) orgres.ResponseUri.AbsoluteUri, (object) str2);
      try
      {
        HttpWebRequest request = this.CreateRequest(this.GetPassportLoginUri());
        request.Method = "GET";
        request.Headers.Add(HttpRequestHeader.Authorization, str3);
        using (HttpWebResponse response = (HttpWebResponse) request.GetResponse())
        {
          string str4 = response.Headers["Authentication-Info"].Trim();
          string[] strArray = str4.Substring(checked (str4.IndexOf(' ') + 1)).Split(',');
          int num1 = 0;
          int num2 = checked (strArray.Length - 1);
          int index = num1;
          while (index <= num2)
          {
            if (strArray[index].Contains("from-PP"))
              return "Passport1.4 " + strArray[index];
            checked { ++index; }
          }
        }
        throw new UnauthorizedException("Passport login failure", (Exception) null, true);
      }
      catch (WebException ex)
      {
        ProjectData.SetProjectError((Exception) ex);
        WebException webException = ex;
        using (WebResponse response = webException.Response)
        {
          using (new StreamReader(response.GetResponseStream()))
            ;
        }
        throw new UnauthorizedException("Passport login failure", (Exception) webException, true);
      }
      catch (Exception ex)
      {
        ProjectData.SetProjectError(ex);
        throw new UnauthorizedException("Passport login failure", ex, true);
      }
    }

    public bool ResetConnection()
    {
      bool flag = true;
      if ((object) PassportAuthHelper._LoginUri != null)
      {
        ServicePoint servicePoint = ServicePointManager.FindServicePoint(PassportAuthHelper._LoginUri);
        flag &= servicePoint.CloseConnectionGroup("");
      }
      ServicePoint servicePoint1 = ServicePointManager.FindServicePoint(PassportAuthHelper._InitialRedirectorUri);
      return flag & servicePoint1.CloseConnectionGroup("");
    }
  }
}